Granted Patent
Utility
US 4,310,652 · App. 06/133,228
Melt processable poly(ester carbonate) with high glass transition temperature
Inventors:
Bruce T. DeBona, Dusan C. Prevorsek
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: Mar 24, 1980
Inventors
Bruce T. DeBona
Dusan C. Prevorsek
Assignee (at issue)
Allied Chemical Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.